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  1. local v = 2;
  2.  
  3. debug.setmetatable(v, {
  4.     __newindex = function(t,k,v)
  5.         print("Aaahhh...!");
  6.     end
  7. });
  8.  
  9. v.a = 4;
  10. (1).b = 2;
Success #stdin #stdout 0s 2844KB
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Standard input is empty
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Aaahhh...!
Aaahhh...!
https://ideone.com/Nu8a1W
language:
Lua (luac 5.3.3)
created:
9 years ago
visibility:
public

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